I recently upgraded from Mint 11 to 13. I'm using mate desktop. Everything goes smoothly except for the fact that whenever I try to play a video (using both Totem or VLC), even though I selected the option to inhibit the screen saver, it's still active and thus interrupting my video every 10 minutes. I read some posts on this forum and on some other websites but coudln't really get to the bottom of this issue.

I checked and found that I have xdg-screensaver installed but disabled at all times, so... I could really use a hand here Thanks.

Q: Why does my screen go into power saving mode whilst the player is actually playing a video?A: You will either need gnome-screensaver and gnome-power-manager running, or none of those two. Totem talks to gnome-screensaver to stop the screensaver itself, which in turn talks to gnome-power-manager to avoid going into power saving modes. If none of those are running, Totem will use X directly to disable the screensaver.

Neither was installed previously, but installing both failed to eliminate the problem.

I am also having problems with Totem in LM13 MATE edition. While playing videos using Totem I can't reposition whithin the playback, if I try to reposition the video freezes. I never had the same problem with LM12MPlayer works fine, i'm able to reposition videos without problems.

The below is the output from the terminal when I run totem and load a video.

h@h-MS-7345 ~ $ totem

(totem:9663): GLib-GObject-CRITICAL **: Read/writable property 'object' on class 'ZeitgeistDpPlugin' has type 'TotemObject' which is not exactly equal to the type 'GObject' of the property on the interface 'PeasActivatable'

This issue is still present in linux mint 14. Running MATE 1.4.0 and Totem 3.4.3 . I have tried caffeine and no luck, as from what I can tell caffeine doesn't catch the issue. I have tried the MATE auto sleep inhibitor applet which works, but however isn't a good permanent solution as this results in the machine never sleeping if the applet is set to inhibit all forms of sleep. I need a good medium betweent the two. Something that tells MATE session to sleep if totem isn't playing a video , or playing music like it does with Gnome 3. But at the same time won't enable a screensaver every 5 minutes if I don't move my mouse. Is there any work around this issue??

Also have already tried : xset -dpms & other similar things involving xset with no luck either. I think this could be resolved if mate-screensaver could see that totem is running and that gstreamer is running.